#VU24440 Out-of-bounds write in Linux kernel


Published: 2020-01-21

Vulnerability identifier: #VU24440

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19532

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in drivers/hid/hid-axff.c, drivers/hid/hid-dr.c, drivers/hid/hid-emsff.c, drivers/hid/hid-gaff.c, drivers/hid/hid-holtekff.c, drivers/hid/hid-lg2ff.c, drivers/hid/hid-lg3ff.c, drivers/hid/hid-lg4ff.c, drivers/hid/hid-lgff.c, drivers/hid/hid-logitech-hidpp.c, drivers/hid/hid-microsoft.c, drivers/hid/hid-sony.c, drivers/hid/hid-tmff.c, and drivers/hid/hid-zpff.c. A local user with physical access can use a malicious USB device in the Linux kernel HID drivers, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.3 - 5.3.8


External links
http://www.openwall.com/lists/oss-security/2019/12/03/4
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d9d4b1e46d9543a82c23f6df03f4ad697dab361b
http://usn.ubuntu.com/4226-1/


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability